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ISL3871IN18

Manufacturer: I

Wireless LAN Integrated Medium Access Controller with Baseband Processor

Partnumber Manufacturer Quantity Availability
ISL3871IN18 I 150 In Stock

Description and Introduction

Wireless LAN Integrated Medium Access Controller with Baseband Processor The ISL3871IN18 is a wireless LAN (WLAN) baseband processor designed for IEEE 802.11b applications. Below are the factual details about its manufacturer, specifications, descriptions, and features:  

### **Manufacturer:**  
- **Intersil Corporation** (now part of Renesas Electronics Corporation)  

### **Specifications:**  
- **Interface:** SPI (Serial Peripheral Interface)  
- **Operating Voltage:** 3.3V  
- **Package:** 48-pin LQFP (Low-Profile Quad Flat Package)  
- **Compliance:** IEEE 802.11b standard  
- **Data Rate:** Supports 1, 2, 5.5, and 11 Mbps  
- **Modulation Schemes:** CCK (Complementary Code Keying), DQPSK (Differential Quadrature Phase-Shift Keying), DBPSK (Differential Binary Phase-Shift Keying)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
- The ISL3871IN18 is a highly integrated baseband processor for WLAN applications.  
- It includes a digital signal processor (DSP) for modulation/demodulation, MAC (Media Access Control) processing, and error correction.  
- Designed for use with external RF transceivers to form a complete 802.11b wireless solution.  

### **Features:**  
- **Integrated MAC and Baseband Processing**  
- **Supports WEP (Wired Equivalent Privacy) Encryption**  
- **Low Power Consumption**  
- **On-Chip FIFO Buffers for Data Management**  
- **Programmable Power Management Modes**  
- **Compatible with External RF Front-End Chips**  

This information is based on the manufacturer's datasheet and technical documentation.

Partnumber Manufacturer Quantity Availability
ISL3871IN18 INTERSIL 4000 In Stock

Description and Introduction

Wireless LAN Integrated Medium Access Controller with Baseband Processor The ISL3871IN18 is a wireless LAN (WLAN) baseband processor manufactured by **INTERSIL**.  

### **Key Specifications:**  
- **Manufacturer:** INTERSIL  
- **Part Number:** ISL3871IN18  
- **Type:** WLAN Baseband Processor  
- **Interface:** Supports IEEE 802.11b standard  
- **Package:** 128-pin PQFP (Plastic Quad Flat Pack)  
- **Operating Voltage:** Typically 3.3V  
- **Data Rate:** Up to 11 Mbps (802.11b compliant)  
- **Modulation:** Supports CCK (Complementary Code Keying) and DSSS (Direct Sequence Spread Spectrum)  

### **Descriptions and Features:**  
- Designed for wireless networking applications.  
- Integrates baseband processing and MAC (Media Access Control) functions.  
- Supports seamless integration with RF front-end components.  
- Includes hardware acceleration for encryption (WEP).  
- Optimized for low-power operation in portable devices.  
- Provides host interface for connection to microcontrollers or processors.  

This chip was commonly used in early 802.11b Wi-Fi devices such as access points and client adapters.

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